<template>
	<!-- <my-search :bgcolor="'blue'" :radius="5"></my-search> -->
	<my-search @click="gotoSearch"></my-search>
	<view class="scroll-view-containt">
		<scroll-view class="scroll-view-left" scroll-y :style="{height: wh +'px'}">
			<block v-for="(item, i) in cateList" :key="i">
				<view :class="['scroll-view-left-item',i===active?'active':'']" @click="changeActive(i)">
					{{item.cat_name}}
				</view>
			</block>
		</scroll-view>
		<scroll-view class="scroll-view-right" scroll-y :style="{height: wh +'px'}" :scroll-top="scrollTop">
			<view class="cate-lvel2" v-for="(item,i2) in cateLevel2" :key="i2">
				<view class="cate-lvel2-title">/{{item.cat_name}}/</view>
				<!-- 三级分类-->
				<view class="cate-lvel3-list">
					<view class="cate-level3-list-item" v-for="(item3,i3) in item.children" :key="i3" @click="gotoGoodsList(item3)">
						<image :src="item3.cat_icon"></image>
						<text>{{item3.cat_name}}</text>
					</view>
				</view>
			</view>
		</scroll-view>
	</view>
</template>

<script>
	import mixBadge from '@/mixins/tabbar-badge.js'
	export default {
		mixins: [mixBadge],
		data() {
			return {
				wh: 0,
				cateList: [],
				active: 0,
				cateLevel2: [],
				scrollTop: 0
			};
		},
		onLoad() {
			const sysInfo = uni.getSystemInfoSync()
			this.wh = sysInfo.windowHeight-50
			this.getCateList()
		},
		methods: {
			async getCateList() {
				const {
					data: res
				} = await uni.$http.get('/api/public/v1/categories')
				console.log(res)
				if (res.meta.status !== 200) return uni.$showMsg()
				this.cateList = res.message
				this.cateLevel2 = res.message[0].children
			},
			changeActive(i) {
				this.active = i
				this.cateLevel2 = this.cateList[i].children
				this.scrollTop = this.scrollTop === 0 ? 1 : 0
			},
			gotoGoodsList(item){
				uni.navigateTo({
					url:'/subpkg/goods-list/goods-list?cid='+item.cat_id
				})
			},
			gotoSearch(){
				uni.navigateTo({
					url: '/subpkg/search/search'
				})
			}
		}
	}
</script>

<style lang="scss">
	.scroll-view-containt {
		display: flex;

		.scroll-view-left {
			width: 120px;

			.scroll-view-left-item {
				background-color: #F7F7F7;
				line-height: 60px;
				text-align: center;
				font-size: 12px;

				&.active {
					background-color: #FFFFFF;
					position: relative;

					&::before {
						content: ' ';
						display: block;
						width: 3px;
						height: 30px;
						background-color: #c00000;
						position: absolute;
						top: 50%;
						left: 0;
						transform: translateY(-50%);
					}
				}
			}
		}
	}

	.cate-lvel2-title {
		font-size: 12px;
		font-weight: bold;
		text-align: center;
		padding: 15px 0;
	}

	.cate-lvel3-list {
		display: flex;
		flex-wrap: wrap;

		.cate-level3-list-item {
			width: 33.33%;
			display: flex;
			flex-direction: column;
			justify-content: center;
			align-items: center;
			margin-bottom: 10px;

			image {
				width: 60px;
				height: 60px;
			}

			text {
				font-size: 12px;
			}
		}
	}
</style>